21797876

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{2447}}^1$

素因数の和:2599

約数の個数: 24

約数和(自身を含む): 40715136

約数和(自身を除く): 18917260

約数列:

[1, 2, 4, 17, 34, 68, 131, 262, 524, 2227, 2447, 4454, 4894, 8908, 9788, 41599, 83198, 166396, 320557, 641114, 1282228, 5449469, 10898938, 21797876]

約数ペア:

[(1, 21797876), (2, 10898938), (4, 5449469), (17, 1282228), (34, 641114), (68, 320557), (131, 166396), (262, 83198), (524, 41599), (2227, 9788), (2447, 8908), (4454, 4894)]